Unfortunately, plagiarism is a big problem here on steemit. It becomes even more apparent when you hold any sort of contest and have to reverse image search all of the entries. I've found at least 50 stolen images just in the 11 weeks I've been doing the ASW Contest. Your's is definitely the first one that has appeared more than 3 times on TinEye, yet been an original work. Congratulations on your photo being a popular one.
You did the right thing though. You proved my accusation wrong. I have removed the flag and upvoted your latest posts in consolation. I also learned not to jump right to the flagging. From now on, I'll make my accusation and wait for a reply/proof of ownership before flagging. My apologies.